CVE-2023-48733

NameCVE-2023-48733
DescriptionAn insecure default to allow UEFI Shell in EDK2 was left enabled in Ubuntu's EDK2. This allows an OS-resident attacker to bypass Secure Boot.
SourceCVE (at NVD; CERT, LWN, oss-sec, fulldisc, Red Hat, Ubuntu, Gentoo, SUSE bugzilla/CVE, GitHub advisories/code/issues, web search, more)
ReferencesDLA-3852-1, DSA-5624-1

Vulnerable and fixed packages

The table below lists information on source packages.

Source PackageReleaseVersionStatus
edk2 (PTS)jessie/non-free0~20131112.2590861a-3vulnerable
stretch (security), stretch (lts), stretch0~20161202.7bbe0b3e-1+deb9u2vulnerable
buster (security), buster, buster (lts)0~20181115.85588389-3+deb10u4fixed
bullseye (security), bullseye2020.11-2+deb11u2fixed
bookworm (security), bookworm2022.11-6+deb12u1fixed
sid, trixie2024.11-2fixed

The information below is based on the following data on fixed versions.

PackageTypeReleaseFixed VersionUrgencyOriginDebian Bugs
edk2sourcejessie(unfixed)end-of-life
edk2sourcestretch(unfixed)end-of-life
edk2sourcebuster0~20181115.85588389-3+deb10u4DLA-3852-1
edk2sourcebullseye2020.11-2+deb11u2DSA-5624-1
edk2sourcebookworm2022.11-6+deb12u1DSA-5624-1
edk2source(unstable)2023.11-7

Notes

https://www.openwall.com/lists/oss-security/2024/02/14/4
https://bugs.launchpad.net/ubuntu/+source/edk2/+bug/2040137

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